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Patch-package tries to apply the same patch twice and fails

See original GitHub issue

I’ve set patch-package up according to the directions in the README, adding it as a prepare script in my package.json file, and I’ve added a single patch file. On a clean run with no node_modules, or with the patch not applied yet, the patch works great! However after the patch has been applied running yarn again seems to try to apply the patch again which fails. Here’s some sample output:

[nix-shell:~/project]$ rm -rf node_modules/ && yarn
yarn install v1.0.1
[1/4] Resolving packages...
[2/4] Fetching packages...
info fsevents@1.1.2: The platform "linux" is incompatible with this module.
info "fsevents@1.1.2" is an optional dependency and failed compatibility check. Excluding it from installation.
[3/4] Linking dependencies...
warning "ajv-keywords@2.1.0" has incorrect peer dependency "ajv@>=5.0.0".
[4/4] Building fresh packages...
warning Your current version of Yarn is out of date. The latest version is "1.3.2" while you're on "1.0.1".
info To upgrade, run the following command:
$ curl -o- -L https://yarnpkg.com/install.sh | bash
$ patch-package
patch-package: Applying patches...
@types/ramda@0.24.17 ✔
Done in 10.07s.

[nix-shell:~/project]$ yarn
yarn install v1.0.1
[1/4] Resolving packages...
success Already up-to-date.
$ patch-package
patch-package: Applying patches...

**ERROR** Failed to apply patch for package @types/ramda

  This error was caused because Git cannot apply the following patch file:

    patches/@types/ramda+0.24.17.patch

  This is usually caused by inconsistent whitespace in the patch file.

error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.